Improved process of cleaning cotton and woollen-wastes from oils



neat-sate gaunt Gtfifliw.

HAYDN M. BAKER, OF WASHINGTON, DISTRICT OF COLUMBIA.

Letters Patent No. 91,407, dated June 15, 1869.

IMPROVED PROCESS OI CLEANING COTTON AND WOOLLEN-WASTES 'IROM OILS GREASE, 8w.

The Schedule referred to in these Letters Patent and makingpart of the same.

To all whom it may concern.

Be it known that I, HAYnN M. BAKER, of'Washington, in the county of Washington, and District of Colnmbia, have invented a certain new and useful Process for Cleaning Ootton,Woollen, and other Fibrous Submechanical appliances; and

My invention is fnrther based upon the property of soaps to elect hot water in preference to oils, thereby disengaging'the oils previously combined with the fibrous material; and

My invention consists'in the process as hereinafter described, to wit.

I first provide a suiliciently capacious kettle to treat the quantity I desire to operate upon. I then melt the requisite quantity of soap in the kettle to thoroughly combine with all the oils, 850., in the fibrous material to be cleaned, when I then immerse the fibrous substances in the meltedsoap, and agitate the whole mass of soap and fibrous material for such a length of time as will insure the thorough combination of all the oils, gums, resins, 850., with the soap. The fibrous substances are then passed through iron or other rolls, expressing the compound of soap, oils, gums,

. resins, 850., said comppund so expressed running back into the kettle, while the fibrous substance is conveyed to another kettle containing boiling water, where it is allowed to boil for a time, when it is wrung out and rinsed in clear water, and dried, being then ready for reuse.

Thecompound of soap, oils, gums, 8250., is now treated with suflicient hot water to form a solution of the soap, thereby disengaging the oils which rise tothe surface, and may be separated from the solution of soap by any convenient method. The solution of soap is then boiled to a dryness, or the condition of hydrate, when it is in condition to be re-used.

The advantages of my invention are that it provides a rapid and economical method for the removal of oils, gums, resins, &c., from fibrous substances without the destruction of the fibres.

Having fully described the mode and advantages of my improved process,

What I claim as new, and desire to secure by Letters Patent, is-

l. The use of soluble alkaline oleates, margarates,

and stearatcs, (known in the market as soaps,) either Witnesses WM. 0. MoINrIRE, J. V. KREPPS. 

